题干
-A nice day today, isn't it?
-Yes. __________ go for a picnic and relax ourselves?
A：Would you like
B：Why not
C：What about
D：Why don't
答案(点此获取答案解析）
B
-A nice day today, isn't it?
-Yes. __________ go for a picnic and relax ourselves?
A：Would you like
B：Why not
C：What about
D：Why don't
3Zn（OH）2＋2Fe（OH）3＋4KOH，下列叙述不正确的是
